Knitting-machine



(No Model.) 2 Sheet-Sheet 1.,

H. '0. SHAW.

KNITTING MACHINE.

No. 259,429. Patented Jun 13, 1882. Fig.7.

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(No Model.) 2 SheetsSheet 2.

H. G. SHAW KNITTING MAGHINE. No. 259,429. Patented J1'1n613, 1882.

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HERBERT O. SHAW, OF NEEDHAM, MASSACHUSETTS, ASSIGNOR TO THE SHAW GLOVE COMPANY, OF MASSACHUSETTS.

MACHINE.

SPECIFICATION forming part of Letters Patent No. 259,429, dated June 13, 1882.

(No model.)

To all whom it may concern:

Be it known that I, HERBERT G. SHAW, of Needham, of the county of Norfolk and State of Massachusetts, have invented a new and useful Improvement in Knitting-Machines; and I do hereby declare the same to be described in the following specification and represented in the accompanying drawings, of which Figure 1 is a top view, Fig.2 a front elevation, and Fig. 3 a transverse section, of mechanism containing my invention. Figs. 4, 5, 6, and 7 are side views of the four kinds of latchneedles used in or with such mechanism.

The nature of my invention is fully set forth in the claims hereinafter presented.

The improvement has reference to mechanism described in Letters Patent No. 241,163, dated May 10, 1881, such mechanism having been in part or wholly invented by me. It composed a portion of a machine for knitting with yarns of different colors, fancy, spotted, or checked fabrics, particularly gloves or portions thereof, the carriers for such yarns notbeing represented, as they constitute no part of the invention.

The machine has several sets of needle-carriers, two only of which are shown in the accompanying drawings. In the working of the needles of each set, each half of them is stationary while the other is being moved to effect the knitting of the work, such requiring two cam-bars with cams or cam-plates to the sets of needles. These cam-bars are alternately moved longitudinally, one being at rest while the other is in movement, they being provided with mechanism for so moving them.

In my improved mechanism, as shown in the accompanying drawings, the needles used, as in the machine above mentioned or described in the said patent, have projections or studs a Z) to enter the cams of the bars, the studs a of one-half thenumber of the needles ofeach set being at a greater distance from the hooks of their needles than are the studs 1) of the remaining needles, such being as represented. Besides such main studs each needle has at its rear end an additional stud, 0. Furthermore,certain of the needles-viz.,those which are to be used in knitting in the thread, which is to be subsequently extracted,where theknitting of the thumb is to be commenced in the fabric-are provided with additional studs, as shown at d in Figs.6 and 7.

One portion of my present invention is to enable all the needle-carriers of the sets of needles to be moved simultaneously a like distance forward or backward to regulate the length of stitch-that is, to increase or diminish it-as occasion may require.

The mechanism described in the aforesaid patent had to each needle-carrier or its supporting-shoe separate means of adjusting it for varying the length of stitch, and consequently as each had to be adjustedindependently of the other it became very difficult, if not practically impossible, to readily effect equality in the adjustments.

With my improvement all the needle-carriers are moved at the same time a like distance, whereby uniformity in lengths of the stitches is produced in the sets of needles when they may be at work. 7

Furthermore, there is to the machine means of knitting into the fabric cotton or other threads at the places where the knitting of the thumbs and fingers of the glove are to be commenced. On such threads being subsequently withdrawn or extracted from the knit fabric the loops thereof for the reception of the thumb or finger knitting needles will be free of yarn.

My improvement thus saves the necessityof cutting the fabric and removing the waste yarn from the loops, as heretofore practiced.

In the drawings, A A denote the two sets of needle carriers, which in this case are adapted to slide rectilinearly and transversely upon a bed or support. plate, 13, over and parallel to which are arranged five parallel stationary bars, 0, D, E, F, and G.

The bars 0 and E are the guides of the main cam-bars H and I, and extend through posts extending up from such cam-bars. These cambars are to be supposed to be provided not only with cam-plates, as are the cam-bars described in the patent hereinbefore referred to, but with mechanism (also described in such patent) for moving such cam-bars, the bar D being the sustaining-bar of such' mechanism.

The bars F and G support and guide additional cam-bars, H and I, one of which-viz.,

is to be supposed to have on its under side a cam for operating with the studs (1 (l of the needles used in knitting into the fabric the thread where the knitting of the thumb is to be commenced.

The cam-bar I is also to carry a cam to operate with the studs 0 at the rear end of the needles, in order to effect the necessary movements of the needles knitting into the fabric the thread where the knittings of the fingers are to commence. These threads I term the marking-threads, each of which is to be laid upon the needles by a suitable thread-carrier operated by hand, or provided with mechanism for moving it at the proper times.

The two auxiliary cam-bars H and I have toothed racks K L connected with and projecting from them, as shown.

A pinion, M, to slide on a prismatic shaft, N, is arranged as represented, and provided with a.crank,0. To the said pinion there isa shipper, P, for moving it on the shaft from one to the other of the two racks.

By means of the cranked shaft and the pinion and the rack of either of the cam-bars H and I, such cam-bar may be moved to actuate the needles, a marking-thread being laid on them at the same time.

Extending down from each needle-carrierA A is a screw-bolt, R, provided with a shoulder, 71. The bolt extends through a bar, S, having journals 2' at its ends to enter slots is made in two arms, I Z, lengthwise thereof, such arms being extended upward from the rockshaft T, provided with an arm, U, projecting from it, as shown, and movable toward and away from a stationary plate, V, provided with aseries of holes, at.

A spring, \V, fixed to the arm and bearing against one'of the supports it n of the rock-shaft, serves to force the arm toward the plate V.

A stud, 0, projects from the arm toward the perforated plate.

On taking hold of and working the arm up or down all the needle-carriers may be moved simultaneously, the stud and perforated plate answering to stop the lever at the terminus of each movement of it. Pinspp inserted in the plate may also be used to stop the arm in either of its two positionsfor the stud to enter a hole in the plate.

What I claim as my invention is as follows:

1. The combinatiomwith the needle-carriers.

of mechanism, substantially as described, for

effecting simuitaneous and equal movements of them in order to vary the length of stitch, as set forth.

2. In combination with the needles and their main operative cam-bar's and studs, the auxiliary studs and cam bar or bars, arranged and to operate substantially as, set forth, to aid in effecting the knitting into the fabric of marking-threads, as explained.

' HERBERT (J. SHAWV.

Witnesses: 7

It. H. EDDY, E. B. PRATT. 

